/* ******************************************************************************
 * Copyright (c) 2006-2012 XMind Ltd. and others.
 * 
 * This file is a part of XMind 3. XMind releases 3 and
 * above are dual-licensed under the Eclipse Public License (EPL),
 * which is available at http://www.eclipse.org/legal/epl-v10.html
 * and the GNU Lesser General Public License (LGPL), 
 * which is available at http://www.gnu.org/licenses/lgpl.html
 * See http://www.xmind.net/license.html for details.
 * 
 * Contributors:
 *     XMind Ltd. - initial API and implementation
 *******************************************************************************/
package org.xmind.gef.draw2d;

import org.eclipse.draw2d.IFigure;
import org.xmind.gef.draw2d.geometry.PrecisionPoint;

public interface IAnchor {

    void addAnchorListener(IAnchorListener listener);

    PrecisionPoint getLocation(PrecisionPoint reference, double expansion);

    PrecisionPoint getLocation(double x, double y, double expansion);

    PrecisionPoint getLocation(int orientation, double expansion);

    IFigure getOwner();

    PrecisionPoint getReferencePoint();

    void removeAnchorListener(IAnchorListener listener);

}